Window



J. BROGDEN July 1, 1930.

WINDOW Filed April 10. 1928 FIG: I.

2 Sheets-Sheet 1 INVENTOR: Jbak/ 13m July 1, 1930. J BROGDEN 1,768,740

WINDOW Filed April 10, 1928 2 Sheets-Sheet 2 I 3 I 7 I IIIII/III/III/ WITNESSES INVENTOR Jah .Bmyulgn 22% a l BY W I ATTORNEYS.

Patented July 1 1930 UNITED. STATES PATENT OFFICE J'OAE BROGDEN, OF MELBOSE PARK, PENNSYLVANIA, ASSIGNOB 'IO DAVID LUIETONB SONS COMPANY, 01' PHEADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA WINDOW Application filed April 10,

-My invention relates to windows, and is more especially concerned with sliding metallic windows such as are widely used in modern fireproof buildings. Various ob-'. jects and advantages of the invention are generally promoted and enhanced by sheet metal construction.

.I aim to make the window proof against entrance of flame, as well as a ainst ignition; tight against weather an draug ts; and of neat and pleasing appearance, without unsightly exposure of sash cords or chains. I also aim to mount and guide the sliding sashes in a simple and convenient manner, without necessity for contact or adjustment inside the jambs. Other advantages obtainable iu-'-connection with the invention include simplicity of construction,- facility in assembly and installation, and relatively low cost of manufacture.

In the drawings, Fig. I is a front elevation (from outdoors) of a sheet metal window conveniently embodying my invention.

Fig. II is a view at right angles to Fig. I, with various parts in vertical section as indicated by the arrows IIII in Fig. I,

, certain portions being broken out and oniitted for the sake of showing the rest on a larger scale.

Fig. III is a horizontal section through one of the jambs and the corresponding side rails of both sashes, taken as indicated by the line and arrows TIL-III in Fig. I, but on a larger scale.

Fig. IV is a view similar to Fig. III on a larger scale, but showing onl the portion of the jamb adjacent the win ow opening, and omitting the sash cables or chains.

Fig. V is a side view of a device for attaching a sash cable to a sash.

Fig. VI is a view similar to Fig. IV illustrating a somewhat different construction.

Fig. VII is a vertical section through the meeting rails, similar to that shown in Fig. II, but on a larger scale.

The window shown in the drawings comprises a frame consisting of a lintel or head 10, opposed jambs 11, and a sill 12, all of hollow sheet metal construction. The upper and lower vertically sliding sashes 14, a

1928. Serial No. 268,860.

15, also of sheet metal construction, are mounted and guided in the window frame by means included in, or associated with, the exposed metal jamb facings or cheeks 16,as hereinafter described. The sash side rails comprise sheet metal lates 20 extending into the corresponding amb slots 17 18, which are'just wide enough to afford said plates some clearance or play and thus allow the sashes 14, 15 to move easil As here shown, each plate 20 is offset or oggled outward at 21 to afford space for the glass 22, and constitutes the rincipal structural element of the side rail. The glass 22 is held in place by a sheet metal strip 23 detachably secured to the plate 20, so as to serve as a removable glazing strip. The up er and lower rails of each sash are more or ess similar to the side rails in construction.

As shown in Fig. III, the sash side rail plates 20 extend through the jamb cheek slots 17, 18 i to the space behind the jamb cheek 16 su ciently to afford suitable attachment for sash cables or chains 24, which extend over pulleys 25 to sash weights 26 in the jamb boxes. A vertical division plate 27 in each jamb box keeps the sash weights 26 from fouling one another. Edgewfise movement or play of the sashes 14, 15 is prevented or limited by means outside the jambs 11, co-operating with the jamb faces or cheeks 16. Preferably, the play-limiting means for both sashes 14, 15 co-operate with the jamb-cheek portion or parting strip 28 between the slots 17, 18. As shown in Fig. III, the parting strip 28 is of channel section, witlf its flanges 29 turned and projecting outward, away from the interior of the jamb box, and the sashes 14, 15 have correlative flange portions 30 that overlap these flanges 29 so as to weather the sashes, besides limiting their edgewise play. As shown in Figs. III and IV, sheet metal weather strips .31 are secured against adjacent sides of the plates 20, and their margins that form the flanges 30 are offset or 30 gled away from the plates 20 at 32 to a 0rd space for the parting strip flanges 29 and a slight clearance except at the edges of the flanges 30, which make spring contact with the parting stri flanges 29. The edQwise play of the sas es .14, is prefe edgesofthesashflan rather than by engagement of the outer edges of the arting stri flanges 29 against the ofisets BJinthe sas weathering strips 81; accordingly the clearance at the former point is shown less than at the latter point.

The weathering strip 31 for the u r sash 14 extends between its plate an the corresponding glazing strip 23, and is bent outward inside the offset 21 of said plate 20; while the weathering strip 31 for the lower sash 15 is at the outer si e of its plate the interior 0 the jamb box, but separately housed or enclosed behind the jamb che or facing 16. -As shown in Figs. III and IV, the enclosure is formed by a chanel-like depression 35 of the sheet metal forming the jamb facing 16, so as to extend aroun behind the slots 17, 18 and the sash plate margins. This channel 35 expands inward in a dovetail crossisection, and is so deep (in relation to the edge play of the sashes 14, 15 permitted by t e parts 28, that the edges of the plates 20 can not reach its bottom. The parting strip 28 is supported from the bottom of the channel by a chanel-shaped member 36, and is detachabl secured by screws 37 taking into or throng the channel bottom. To assure correct edgewise location of the parting strip 28 and proper width of the slots 17 18, the parting strip 28 has a central longitudinal depression 88, of width to seat accurately on the member 36, formed b embossment of the parting strip web. T e sash cables 24 are accommodated and housed in the jamb channel 85 behind the parting strip 28, in se a,- rate compartments or chambers 39 at eit er side of the member 36, and are thus; en-

tirely concealed. As illustrated in Figs. III, IV and 'V, the sash cables (chains) 24 are attached to sheet metal straps 40, spot welded to the sash plates 20 at their lower ends, and twisted and bent to throw their a rtured upper ends awa from said lates. e lowermost sheet meta link of eac sash chain 24 has its ends separated to take the strap 40 between them, and is bolted to the strap.

1y limited by engagement of the free 3 30 with the bottom or web of the parting strip channel 28,,

'- the enlargement of the cham- I here 39 to either side as compared, with the widths of the slots 17, 18 and to the depth of these chambers behind the jamb cheek 16, the sash plates 20 are entirel free from contact behind the cheek 16. t one side of the cheek slots 17. or 18, each )late 20"" makes a 'mere line contact with t e. bnt' 1 sheet metal corner opposite the arting strip flange 29; at the other side of the groove, there is only a narrow contact with the flange 29 itself.

To facilitate installation of the sashes 14, v 15, a ortion 44 of the jamb cheek wall at,

one si e of the channel 35' may be made removable. As shown in Figs. III and IV, this removable portion 44 includes the inner part of the jamb cheek 16, inside the ve18, and the corresponding side of the channel 35, as well as more than half of the bottom of said channel 35. The joint 45 between the innermost edge of this removable portion 44 and the rest of the jamb box is of double hook character, formed by first bendin the margin of the jamb box wall outwar and then retrovert ng it inward, and by retroverting the margin of the part 44. The margins of the removable and fixed portions of the bottom of the channel 35 overlap behind the member 36.

Preferably, the fixed bottom of the jamb wall channel 35 is supported at one or more points in the hei ht of the window: as shown in Figs. II and IV, this is accomplished by a sheet metal spreader member 46 extending from front to rear of the jamb box against the bottom of the channel 35, and secured to the jamb box wallsv at either end. This member 46 may extend as 'a partition the whole height of the jamb, so as to form a com lete inner wall behind the jamb face 16. he screws 37 that secure the parting strip 28 and the member 36 take into or throu h the overlap ing halves of the channel ottom, thus 0 amping these parts securel together. The solid sup ort afforded b t e partition 46 makes the w ole jamb chee strong and rigid.

From the foregoing description, it will be seen that the rincipal wearing parts 28 and 30 on which the smooth operation and weather-tightness of the window mainly dend are relatively small and very simple, so that they can'be made of superior material (such as non-corrosive bronze) and workmanship without making the window excessively costl and can easily be rolled or otherwise ma e true and straight. There are no. contacts behind the jamb face or cheek 16 to bind, and no adjustments to get out of order. 7

shows a somewhat different construction in which the sash late flange 30 is formed by a double S-li e retroversion of the weathering strip 31, instead of by a ward, downward,

mere offsetting as in Fig. IV. The rearmost portion of the bottom of the jamb channel 35 has its margin retroverted and doubled flat at 45 to give greater rigidity, and a better hold for the screw 37 that clamps the jamb wall arts together. The partition 46 behind t e channel 35 has a shallow depression 35 that seats the retroverted margin 45. The partition 46 is bent toward the jamb face just in front of the channel 35, and its ed e or margin is bent back in the squared ead 46 of the jamb wall.

At the top rail of the upper sash 14 (Fig. II) the plate 20 bottoms in a groove or fold 49 of the lower sheet metal head wall 50, while the glazing strip 23 is offset or bent laterally inward and then upward to form a channel 57 at the inner side of the plate 20. The weather strip 31 is of a springy bronze, and is bent back sidewise and then in the form of an inverted channel in the channel 57, with its bend upward to make contact with the shoulder formed by the corner ofthe head groove 49. At the bottom rail of the lower sash 15, the plate 20 is offset or joggledoutward and downward, at 52, to engage the double steps 53 of the sill 12, while the glazing stri 23 and the springy weathering strip 31 a 0rd weathering provisions similar to those of the upper sash 14 at the head 10. The upper edge of the glazing strip 23 is bent outward and turned downward slightly to afford convenient hand-hold for raising and lowering the sash.

At the meeting rails (Figs. II and VII), the upper sash glazing strip 23 is bent inand upward into a V-channel 55, while the lower sash glazing strip 23 is bent outward and downward in a flange 56, corresponding in slope to the outer side of the V-channel 55. The springy weather strip 31 of the lower sash'meeting rail is bent to comform to the flange 56 and its edge angled outward, but is normally more nearly vertical than the flange 56, as shown in Fig. VII, so that it shall always make spring-yielding contact with the outer side of'the upper meeting rail channel 55. The lower margin of the plate 20 of the upper sash 14 is bent inward horizontally, andthe upper margin of the plate 20 of the lower sash 15 is bent outward horizontally, in conformity to the corresponding portion of the glazing strip 23. As shown in Figs. IV and VI, the jamb face parting strip 28 may be provided with a wedge block 58 to make a tight joint with the ends of the meeting rails when the sashes 14, 15 are closed. p Having thus described my invention, I claim:

1. The combination of a .metal window jamb cheekelement embodying a longitudinal channel in its face of inwardly expandin cross-section; a metal sash with a side rail plate slidin in said channel, but free from contact be ind the cheek elements; a parting strip with an outwardly directed weathering flange beside the channel edge;

,and a weathering strip on side rail plate overlapping the aforesaid weathering flange and constituting the sole means to limit edgewise play of the sash.

2. The combination of a metal window jamb cheek element formed to embody a vertical channel in its face of inwardly-expanding cross-section; a metal sash with a side rail plate sliding in said channel, but free from contact behind the cheek element; an angled parting strip with an outwardly directed weathering flange mounted in the channel on the jamb check beside the channel edge and a weatheringstrip on said rail plate overlapping the parting strip weathering flange and co-operating at its free ed e therewith to limit edgewise play of the sas 3. The combination of a metal window jamb cheek element formed to embody vertical channels in their opposing faces of dovetail cross-section; metal sashes with side rail plates sliding in said channels, but free from contact behind the cheek faces; and

weathering means on both sashes externally co-operating with opposed laterally-directed components of parting strips fittedin said channels to limit edgewise play of the sashes.

4. The combination of a metal window jamb with vertical slots in its cheek and enlarged space behind the cheek, and a parting strip channel between the slots with its flanges outward; metal sashes with side-rail plates sliding in said slots, but free from contact behind the cheek plate; and weathering flanges on said plates co-operatin with said channel to limit the edgewise p ay of the sashes, and overlapping the channel flanges.

5. The combination of a metal window jamb facing element embodying a vertical dovetail-section channel in its face, an outwardly directed weathering flange integral with the parting strip secured in the slot; a metal sash with a side rail plate sliding in said slot, and also having a lateral glass retainer offset; and a weathering strip on said sash plate with an S-like retroversion overlapping the aforesaid flange and bent to conform to the glass retainer ofi'set portion thereof.

6. The combination of a metal window frame member presenting a shoulder and a corresponding sash rail plate adapted to extend past said shoulder, with means. forming a channel at one side of said plate 0 posite said shoulder, and a weathering cus ion in said channel for co-operating with said shoulder.

7. The combination with a channelled frame member ofan oppositely arrange spring metal channel in the channel of said member for a correspondin window frame member.

8. The combination of a sash frame member comprising juxtaiosed plates with portions separated to a 0rd a channel, and a sheet metal weather strip between said plates with its margin retroverted in said channel fors ring yielding contact with a correspon ing window rame member.

In testimony whereof, I haye hereunto signed my name at Philadelphia, Permsylvania, this 5 day of A ril, 1928i J AH BROGDEN.

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